Fountain pen

Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Marking instrument

Patent

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Details

D19 51, D19 56, D19 57, 1906

Patent

active

D0428917&

REFERENCES:
patent: D155570 (1949-10-01), Ballard
patent: D155806 (1949-11-01), Kahn
patent: D186059 (1959-09-01), Kahn
patent: D357276 (1995-04-01), Bruhn
patent: D372735 (1996-08-01), Tseng
patent: D403706 (1999-01-01), Fukami
patent: D415524 (1999-10-01), Waldinger
patent: 1278147 (1918-09-01), Hess

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